Furnace



May 15, 1928.

' J MCCARTEN ET AL FURNACE Filed March 31, 1922 2 Sheets-Sheet 1 INVENTOR.

:QEBEE EW BY 7//reo (I? 76 /Va.$/1,

ATTORNEY.

May 15, 1928. 1,669,720

J. M CARTEN ET AL FURNACE Filed March 31, 1922 2 Sheets-Sheet 2 ATTORNEY.

m By J/frea ag ff Patented May 15,1928.

i nhm hmw AN ALFRED GEQRGE mwr sqm PETBMT, ammrummcn.

Application filed Marc-1131, 1922. hserial gait-18,301.

l vision in a furnace ofa baflleehavinga fluid compartment therein. 7

' Another object of the invention isthe. provision of a' furnace having a maximum amount of heating surface with a simplicity of structure. v

Another object of the invention is the provision of a furnacejihaving azflurid container formed from a single casting andbha ving means for supporting and encl'osingisaid container. 7

Another object of the invention is the provision of a bridge wall having air duets com- Inunicati-ng with the combustion chamber of the furnace and wit-l the atmosphere.

'Otherobjects will appear hereinafter.

Theinvention consists in the combinations and arrangement of, Parts m mfi I N 1 .bers=1 scribed claimed.

' 'The invention will be best understoodlfirom which-form a pal-"tot this spedficationnnd inwhich, i Fig; 1 is a front elevational view of the invention with parts removed,

viewof thegin'vention,

Figq i is ailonqitudinal vertical sectional view of a niodifledform ofthe invention,

5 is an elevational view of the baffle it used in the invention, a i

"Figfi is a sectional view of the bridge wall-iisedin the invention. i i 5 The invention is designed for use princia-11y with 'blhllllilIiOilS coal and similar carbonaceous fuelfl although it will operate e pallywellfwithwoodor anthracite c0211.,

s oP T epreferred form of construction; c01nprises a fluid container 9 which'is provided a witha fluid compartment 10. The'rnember 9 is cast in a single piece and is arcuate in 'form, thus affording a very s mply constr i cted fc ontainer." The member" 9 rests a, reference Ito the accompanyin drawings *Ei'g. Q is a longitudinal'vertical sectional alongthe edgesthereof on longitudinally ex l wh ext nd a ng: b th de of th t umae em mb rs 11 nd 12 heingr t sp atir ly a prov d t t nt vals wi reenion ing. brhsk t 1. an which ar as integral with the supporting members. Resting upon thetbraekets and enclosing the container fiisashell 15,3vl1ieh is spaced from the; container 9 so as to provide a flue for the tr vel. he ga es f h r e of th furnace to thesmoke stack 41. Aplate 16 is v provided which serves as the iront Wall of the furnace vfrom the top thereof to the level Qfthe hppersurfece 9 th suppor bers ana dditionalqplate 1 G serving as',tl'1e s e c ured by-bolts or other suitable .means to the supporting members. A. plate '17 serves as the ea W1 9i the fu 'i c fih i i assure to theforwardwall b means of stay rods 8.- P oje ting nwa zcly' $12 1; h s p er 11 g member 2; i fla g 1 1 1 which the supporting Ineinenfore hg m mbe s h fls pp r n me U entendsi transversely thereof. A flai1geIl9 iSmovide n the e ber 16 whieh abutsceg ihst a f g 2 formed'km th jlowe tehd. .Q -th Wal 1 7 s fl ng be ng-.-'.@C .f yiQS QH Q t ge -o Ex n 1 mg, rearwardly i from the .rneinber 24' and rest ng en; on dea th rw A i a I pla whic i$-P Q 1d h zit app s hfilw a-flange .25 which issecurely bolted or. rive sdtbit-h re -(W 0i he u ge t lette K portion hereo wh ci co p s a plate 26. Mounted ,within the combustion hambe i a bridg i l 97 i h f P v,vided with 'a fiuid cornpartmhtQS, aninlet ance-'28.i being-provided. tor delivering water ,to :the interior of said bridge wall. Projected vert cally p g th br dg Wal 7 a commnnicatingavith {the space ahovev the bridge wall and the space \belowrthe same are, tubes- 30 which serve tofcondnct air to the COIIlbllStiOII chan berl Aibafile 31 is connected by a hollow. nipple 32 to the con- ,tainen 9.50.21 tohx hg th haflie hd thec ntainer into con nni nication with "otl er, the bafil bei g a ing e asti a av a compartment therein for the "delivery of fluid thereto, a pipe 31" being connected therewitlr which communicates: with feed pipeeafi or asuitable source of efluid. iThe .t n ing l shape s pperti g tm mber on batlie is cast arcuate and is threaded onto the nipple 32. By constructing the battle in this manner it is easily assembled in position and is readily removable when it is desired to remove it. It is apparent that the battle, hesides functioning in the ordinary manner as a battle also acts as a. heating surface and thereby serves to increase the etliciency of the furnace. It is apparent that this is also true of the bridge-wall. Delivery pipes and 36 which are connected to some suitable source of fluid supply communicate with the container at the opposite sides thereof. These delivery pipes may communicate with the container at either the trontor the rear thereof, depending upon the convenience of attachment in each particular case, and for this purpose openings are made in the end walls of the container at each side of each end wall, the openings which are not being used being closed by suitable plugs. Outletpipes 38 and 37 are provided for delivering the hot water to the radiators, the number of said pipes being optional in each case. The form shown in Figs. 1 and 2 are of a water heater and the forms shown in Figs. 4 and 5 relate to the use of the device for a steam heater which will be described hereinafter. In the form shown in Fig. 3 and Fig. 4, a delivery pipe 40 is in communication with the bridge wall and projects exteriorly of the furnace and may be attached or connected to the main delivery pipe at any convenient location. Provided in the end walls of the furnace are openings 42 and 43 which communicate respectively with the passages 45 and 45 provided between the container and the shell so that the dust and dirt which is brushed from the upper surface of the container may thereby be removed, although it has been found in actual experience that most or all of the dirt and soot which is deposited in said passages is very readily burned by the hot gases passing therethrough. )peni11gs 4-4.- are provided in the end walls adjacent the upper portion thereof to allow the operator to brush the dirt and soot; from the upper surface of the container into the passages 45 and 45. A fire box door it; and an ash pit door 4C7 are provided which are of the usual type. In the rear wall is provided a door 18 which allows access to the rear end of the combustion chamber. utilized on the boiler in the ordinary manner and for the ordinary purpose.

IVith a device constructed as described there is provided av furnace which is simple of structure and at the same time very durable. By forming the various, parts as described the number of parts to a furnace is greatly reduced and the cleaning of the furnace is brought to a greater degree of simplicity, as well as reducing the costs of assembling a furnace of this type. A furnace A suitable coating of asbestos 49 is mains cleaner than in furnaces such as are now customarily used. The increased combustion resulting from the. introduction of air into the furnace and the manner of introducing the same also add to the eiliciency of the device.

In Fig. 3 and Fig. 4 there is shown a modilied form of the invention whereby the furnace is utilized for steam heating instead of for hot water heating. A steam dome 50 is mounted on the shell and is connected to the container by means of pipes 51 and 52 and to the bridge wall by means of the pipe A delivery pipe 52-5 serves to conduct the steam from the dome 50. In both cases, whether the device is used for a hot, water heater or a steam heater stay bolts or ribs are cast integral with the interior of the container. serving to reenforce the walls of the container so as to prevent any warping oi the same or any bulging thereof.

\Vhile we have illustratml and described the preferred :forms of construction we do not wish to limit ourselves to the precise forms of structure shown but desire to avail ourselves of such variations and modific' tions as come within the scope of the appended claims.

Having thus described our invention what we claim as new and desire to secure by Letters Patent is:

1. A boiler comprising a semi-cylindrical fluid container having semi-cylindrical walls in spaced relation; end walls mounted thereon and integral therewitl'i; spaced longitudinally extending L-shaped supporting standards adapted for engaging the edges of said container for supporting the same. the inner diameter of said container being equal to the space separating said standards; supporting brackets projecting inwardly from the inner surface of each of said supporting standards and above the bases of said standards; grates mounted on said brackets and positioned below the point of engagement of said container with said supports; outwardly projecting brackets on said supporting standards for reinforcing the same; a semi-cylindrical outer shell supported along its edges by said supporting standards and in spaced relation to said container; and a front and rear wall co-operating with said outer shell for enclosing said container.

2. A boiler comprising a semi-cylindrical fluid container having semi-cylindrical walls in spaced relation; end walls mounted thereon and integral therewith, said container comprising a single casting; spaced longitudinally extending L-shaped supporting standards, each having its legs vertically extending and engaging with its base the below the point of engagement of said con-v tainer with said supports; a plurality of reinforceing brackets mounted on the outer surface of said supporting standards for re inforcing the same; a semi-cylindrical outer shell supported along its edges by said supporting standards and in spaced relation to said container, the end, front and rear walls co-operating with saidouter shell for enclosing said container.

In testimony whereof we have hereunto set our hands at Detriot, in the county of v \Vayne and State of Michigan.

JOHN MQCAR'IEN. ALFRED GEORGE MATTSSON. 

